3 Modes LED Headlight Headlamp, Hands-free Flashlight , Fits Head , Helmet , and Belt with Adjustable Headband , for Outdoor Sports , Powered by Rechargeable 18650 Batteries (Included) LED Bulb, Max Output 2200 Lumens, LED Lifespan Over 100,000 Hours Powered by 1 or 2 18650 Batteries(Include), also with wall charger, car charger and USB cable Elastic adjustable head strap, fits no matter adults or children Aluminum alloy casing , living Waterproof and 3 Mode: High , Low , Strobe Suitable for indoor and outdoor illumination, such as, hunting, fishing and hiking